Evaluation of the distribution of efforts of an immediate restoration supported in three phases of healing : Finite element analysis

Mauricio Alejandro Rodríguez López

Universidad Cooperativa de Colombia

Samuel David Giraldo Gómez

Universidad Cooperativa de Colombia

Federico Latorre Correa

Universidad de Antioquia

Junes Abdul Villarraga Ossa

Universidad de Antioquia.

Juan Gustavo Diosa Peña

Universidad de Antioquia

Introduction: to evaluate the distribution of von Mises stress in implant-supported restorations, with a temporary pillar of Peek and one of titanium, in three stages of healing (zero day, 1.5 months and 3 months). These evaluations were carried out bfem) method.   Methods: A Tapered Screw-Vent® implant (ref .: TSVB10 Zimmer Dental) of 13 mm length by 3.7 mm diameter was modeled with a 3.5 mm platform, a Peek abutment, a titanium abutment, a screw, a crown Pmma of an upper central incisor, a cortical and spongy bone with different densities depending on the stage of healing; the Solid Works 2010 cad Software was used, processed and analyzed through the ansys Software version 14. The von Mises stress distribution was evaluated, applying oblique loads with a magnitude of 200N.   Results: the concentration of stress in the apical spongy bone is 10 times greater on day zero than in the other moments of healing. The models of abutments in peek at the time 1.5 and 3 months showed almost two times greater efforts in the implant than the models in titanium; similar values wer e observed von Mises when comparing the moment 1.5 and 3 months.   Conclusions: on the zero day of healing the greatest amount of effort is concentrated in the apical portion of the cancellous bone, the Peek pillars transmit more effort to the implant screw, the crestal bone formation helps a better distribution of the stress in the system.
Keywords: Peek ess distribution

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2019-04-22
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https://plu.mx/plum/a/?doi=10.16925/2357-4607.2019.01.06